Question

What is inertia? What gives the measurement
of inertia​

Answer 1

All objects have this tendency - they have inertia. ... The more inertia that an object has, the more mass that it has. A more massive object has a greater tendency to resist changes in its state of motion

Hope it will helps you....

Answer 2

the tendency of an object to remain in its existing position is know as inertia. Mass gives the measurement of inertia